The British snowboarder Billy Morgan on his way to landing a Backside 1800 Quadruple Cork. Before this week, the trick was a subject of debate — including the question of whether it could be performed. Red Bull hide caption

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New York Red Bulls defender Chris Duvall (third from left) reacts toward the crowd after teammate Lloyd Sam scores during an MLS soccer game against D.C. United on March 22 in Harrison, N.J. The Red Bulls won 2-0. John Minchillo/AP hide caption

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San Francisco 49ers linebacker Chris Borland, center, during an NFL football game in Santa Clara, Calif. Borland announced that he will retire after just one season to protect himself from brain injuries. Marcio Jose Sanchez/AP hide caption

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Syracuse coach Jim Boeheim, right, speaks with an official during the first half of an NCAA college basketball game against Duke in Durham, N.C., on Feb. 28 Gerry Broome/AP hide caption

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Daina Bouquin competes in the first U.S. Winter Swimming Championships on Saturday in Lake Memphremagog near Newport, Vt. The event drew swimmers from around the world to race in icy water that was below 32 degrees F. Herb Swanson for NPR hide caption

itoggle caption Herb Swanson for NPR

A man watches sports broadcast on screens at a sports book owned and operated by CG Technology in Las Vegas. CG Technology is asking the Nevada Gaming Control Board to allow betting on the Olympics. John Locher/AP hide caption

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Panelist Nahshon Ellerbe, a star running back at Trinity Christian Academy in Addison, Texas, warms up before a game against Midland Christian. Jeffrey McWhorter/Trinity Christian Academy hide caption

itoggle caption Jeffrey McWhorter/Trinity Christian Academy